The radius of the disk is R, and the mass of the disk is M. Using the parallel axis theorem and theequation for the moment of inertia of a disk about its central axis developed in the previous example, Eq. (8), the moment of inertia of the disk about the specified axis is Fig.
Short Circuits. Short circuits are the second most common reason for breaker tripping and are a more serious concern. Short circuits occur when the black hot wires inside your electrical service panel come in contact with either other hot wires or neutral wires.
Short Circuits: Shorts are caused by unwanted current flow in a circuit. Excessive current flow will result in a blown fuse. This may be caused by an undesired path to ground, or by two wires crossing each other. This results in two different circuits shorted together and excessive current flow in the circuit. These touching wires can cause strange behavior in a vehicle. One circuit may activate the other. For instance, the horn may blow when the turn signal was intended. A vehicleâs ground is the engine, chassis, or frame.